PROBLEM TO BE SOLVED: To provide a bosh unit capable of installed so as to appropriately avoid an obstacle even when there is the obstacle in an installation place.;SOLUTION: A bosh unit 5 includes a sheet 8 for receiving a falling object, a frame 10 which supports an outer edge of the sheet 8 and connects a lower frame 12 rotatably with respect to a scaffold 1, and an extensible and contractible rod-like diagonal material 30 supporting the frame 10 of which one end is connected rotatably with respect to the scaffold 1 and the other end is connected rotatably with respect to a vertical frame of the frame 10, where the frame 10 is rotated with respect to the scaffold 1 while the diagonal material 30 is extended and contracted to make an installation angle being an inclination angle with respect to a horizontal surface of the frame 10 variable, and the diagonal material 30 is configured so as to be extended and contracted until the installation angle where the frame 10 is stored in parallel with a side face of the scaffold 1 becomes a storage angle of 90°.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT
展开▼
